Rotary shafts – gudgeons – housings – and flexible couplings for ro – Having lubricating means – For coupling having torque transmitted via radially directed...
Reexamination Certificate
2001-02-14
2003-06-17
Binda, Greg (Department: 3679)
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Having lubricating means
For coupling having torque transmitted via radially directed...
C464S136000
Reexamination Certificate
active
06579186
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to a universal joint that allows a driving member to rotate a driven member. More specifically, the invention relates to a spider for use in a universal joint.
BACKGROUND OF THE INVENTION
Universal joints provide a mechanism for attaching two shafts having coplanar axes. One shaft functions as a driving member, and the other shaft functions as a driven member. The connection made by the universal joint allows the driving member to rotate the driven member, thereby transferring rotational movement between coplanar shafts.
A typical universal joint connection includes a central portion, commonly referred to as a spider. The spider has four outwardly extending legs, or trunnions. A bearing cup is secured to each of the trunnions. A yoke having two opposed arms is connected to the end of each shaft. Each arm of the yoke is attached to a bearing cup. Each yoke is attached to bearing cups on opposing trunnions.
Frequently, each trunnion defines a recess for storing a lubricant. The recess allows the lubricant to reach the bearing cup and other parts of the joint during use, which promotes longer life of the universal joint. The recess is typically a central void in the face of the trunnion. No material is present in the recess. As a consequence, this structure prevents the use of methods of attaching the bearing cup to the trunnion that require a resistance or support surface in the position occupied by the recess. An example of such a method is a staking operation.
SUMMARY OF THE INVENTION
The present invention provides a spider for a universal joint that includes a support surface within the lubrication recess of the trunnion. The support surface allows a bearing cup to be staked onto the trunnion. In a preferred embodiment, the invention comprises a spider including a main body and four trunnions extending outward from the main body. Each trunnion has a first end adjacent the main body and a second end opposite the first end. A recess is located in each trunnion, extending from the second end toward the first end. A support surface is disposed within the recess of each trunnion.
REFERENCES:
patent: 806592 (1905-12-01), Spicer
patent: 1391756 (1921-09-01), Brush
patent: 3110166 (1963-11-01), Shutt, Jr.
patent: 4047396 (1977-09-01), McElwain et al.
patent: 4103512 (1978-08-01), McElwain et al.
patent: 4445875 (1984-05-01), Kosuda et al.
patent: 4478591 (1984-10-01), Mangiavacchi
patent: 4650440 (1987-03-01), Fisher
patent: 4710150 (1987-12-01), Mangiavacchi
patent: 4781652 (1988-11-01), Geisthoff
patent: 4880405 (1989-11-01), Ende
patent: 5342240 (1994-08-01), Mazziotti
patent: 5389039 (1995-02-01), Mazziotti
patent: 4124680 (1992-01-01), None
patent: 317990 (1929-08-01), None
patent: 355054722 (1980-04-01), None
patent: 410002344 (1998-01-01), None
patent: 274670 (1970-06-01), None
patent: 1231-297 (1985-05-01), None
Fischer Eric Michael
Jaszai Stephen
Binda Greg
Visteon Global Technologies Inc.
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